Skip to content

Instantly share code, notes, and snippets.

View wootapa's full-sized avatar

Andreas Petersson wootapa

  • Consid AB
  • Kristianstad
View GitHub Profile
@rdavisau
rdavisau / EnumerableStream.cs
Created October 26, 2015 12:18
EnumerableStream.cs
/// <summary>
/// Provides a convenience method for constructing an EnumerableStream<T>.
/// </summary>
public static class EnumerableStream
{
public static EnumerableStream<T> Create<T>(IEnumerable<T> source, Func<T, List<byte>> serializer)
{
return new EnumerableStream<T>(source, serializer);
}
}
@mateuszwenus
mateuszwenus / save_restore_dependencies.sql
Last active June 19, 2025 14:29
PostgreSQL: How to handle table and view dependencies
create table deps_saved_ddl
(
deps_id serial primary key,
deps_view_schema varchar(255),
deps_view_name varchar(255),
deps_ddl_to_run text
);
create or replace function deps_save_and_drop_dependencies(p_view_schema varchar, p_view_name varchar) returns void as
$$
@hrwgc
hrwgc / wkt_to_proj4.py
Created January 2, 2013 16:37
WKT to Proj4 string GDAL python
from osgeo import osr
srs = osr.SpatialReference()
wkt_text = 'PROJCS["Transverse Mercator",GEOGCS["GCS_Everest_1830",DATUM["D_Everest_1830",SPHEROID["Everest_1830",6377299.36,300.8017]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER["False_Easting",500295.0],PARAMETER["False_Northing",-2000090.0],PARAMETER["Central_Meridian",90.0],PARAMETER["Scale_Factor",0.9996],PARAMETER["Latitude_Of_Origin",0.0],UNIT["Meter",1.0]]'
srs.importFromWkt(wkt_text)
srs.ExportToProj4()
@rgreenjr
rgreenjr / postgres_queries_and_commands.sql
Last active October 29, 2025 19:10
Useful PostgreSQL Queries and Commands
-- show running queries (pre 9.2)
SELECT procpid, age(clock_timestamp(), query_start), usename, current_query
FROM pg_stat_activity
WHERE current_query != '<IDLE>' AND current_query NOT ILIKE '%pg_stat_activity%'
ORDER BY query_start desc;
-- show running queries (9.2)
SELECT pid, age(clock_timestamp(), query_start), usename, query
FROM pg_stat_activity
WHERE query != '<IDLE>' AND query NOT ILIKE '%pg_stat_activity%'